Remote Ruby on Rails Developer Jobs in Barcelona, Spain

  • The best remote Ruby on Rails Developer jobs are on Crossover.
  • Find leading US companies hiring full-time Ruby on Rails developers in Barcelona, .
  • Build cutting-edge products, perform stack enhancements and platform updates.
Apply Now

Why Crossover?

Remote jobs with first-rate USD pay—anywhere in the world.

Remote jobs with first-rate USD pay—anywhere in the world.

Join an elite global team of top 1% professional talent.

Join an elite global team of top 1% professional talent.

Equal opportunity hiring process: just prove your skills are world-class.

Equal opportunity hiring process: just prove your skills are world-class.

Crossover Logo

Remote Ruby on Rails Developer Jobs in Barcelona, Spain

Apply Now

Role Description

Ruby on Rails jobs at Crossover offer the chance to build modern applications, contribute to open-source projects, and perform stack enhancements and platform updates.

Featured Ruby on Rails developer jobs in Spain

REMOTE

AI-Augmented Full-Stack Principal Engineer

$100,000 USD/year
Crossover Logo Symbol
To see more jobs, modify filters, or check out our Job Roles page.

AI-Augmented Full-Stack Principal Engineer @ LearnwithAI

$100,000 USD/year
Apply Now
Fully-remote
Remote
full-time (40 hrs/week)
Flexible schedule
Long-term role

Key responsibilities

  • Using AI to build software that solves real user problems, ships fast, and stays maintainable long-term

Description

Are you a Full-Stack Engineer who thrives on solving complex challenges and delivering high-impact features? Join our team to build innovative AI-powered products that transform how people learn and grow. You’ll focus on high-quality execution, ensuring our products are scalable, maintainable, and impactful.

You’ll work on products that are transforming learning:

  • TeachTap: Leverages AI to bring historical figures to life in a TikTok-like learning experience.
  • TeachTales: Engages students with personalized, magical storytelling that boosts comprehension.
  • TimeBack: Acts as a learning copilot that integrates with existing apps, proactively coaching students.
  • Athena: Uses AI-generated videos and tests to deliver measurable academic outcomes.

This role exists to deliver real-world impact through working software. You’ll use AI tools and cloud-native technologies to build full-stack systems that solve meaningful problems, not just tick off tickets. You’ll be expected to ship fast without cutting corners, choosing the simplest correct solution that balances short-term speed with long-term maintainability.

If you’re ready to solve complex technical challenges and deliver impactful features, we’d love to hear from you.


Candidate requirements

  • At least 4 years of experience writing production code for web applications' frontend and backend (any framework).
  • Strong ownership: Demonstrated experience owning complete modules, product features, or teams, not just contributing siloed tasks
  • Independent execution: The ability to unblock yourself, set your own pace, and find paths forward in ambiguous situations
  • Experience in using generative A.I. in your day-to-day development work

Frequently Asked Questions

Applying for a role? Here’s what to expect.

Crossover's skill assessment process combines innovative AI power with decades of human research, to take the guesswork, human bias, and pointless filters out of recruiting high-performing teams.

Chat-style
screening interview.
STEP 1

Chat-style
screening interview.

Cognitive 
aptitude test.
STEP 2

Cognitive 
aptitude test.

Prove real-world 
job skills.
STEP 3

Prove real-world 
job skills.

Interview with the hiring manager.
STEP 4

Interview with the hiring manager.

Accept Job Offer.
STEP 5

Accept Job Offer.

Pass 
proctored test.
ONE LAST THING

Pass 
proctored test.

Join top-tier companies as a remote Ruby on Rails developer, working full-time

Remote Ruby on Rails Developer jobs elsewhere in Spain

Crossover Logo White
Follow us on
Have a question?

Get answers to common questions using our smart chatbot Crosby.

HELP AND FAQs

Join the world's largest community of AI first Remote WorkersAI-first remote workers.

.